Bedspring



Aug. 6, 1946 c. J. ELDER 2,405,296.

BEDSPRING Filed Aug. 24 1944 Q 0 to. If 2 i INVENTOR. 0/1/92; 5 $1 2352,

Patented Aug. 6, 1946 1 BEDSPRING Charles J. Elder, Muncie, Ind., a'ssignor to The Moore Company, Muncie, Ind.,

Indiana a corporation of Application August 24, 1944, Serial No. 550,931

3 Claims.

Bed springs commonly embody a basefra-me which supports a multiplicity of load-supporting compression springs. The upper ends of such springs are located substantially in a common plane and are surrounded by a border frame secured to the upper ends of the marginal springs. In such a construction, it is customary to provide a stabilizer which acts resiliently between the border frame and. the base frame and opposes any relative horizontal displacement of such two frames. The stabilizer usually takes the form of a bar which is secured to the border frame, extends obliquely downwardly and inwardly of the spring assembly, and is connected by springs to the base frame.

My invention relates to such a stabilizer and more particularly to a means for securing such stabilizer to the border frame. It is the object of my invention to connect the stabilizer to the border frame by a connection which will be adequately firm and secure and which can be simply and economically effected in the assembling of the spring.

In carrying out my invention, I preferably form the border frame of round stock. At any point where the border frame is to be connected to a stabilizer, it is provided on its inner side with a horizontally extending slot having a width suflicient to permit it to receive the end of the stabilizer bar. Near such end, the stabilizer bar is provided with a transversely extending slot. In connecting the stabilizer to the border frame, the slotted end of the former is placed within the slot of the latter, and the metal at the edges of the slot in the border frame is deformed to provide lugs extending into the slot of the stabilizer and preventing the removal of the stabilizer from the border frame.

The accompanying drawing illustrates my invention: Fig. 1 is a fragmental plan view of a bed spring; Fig. 2 is a fragmental vertical section on the line :2-2 of Fig. 1; Fig. 3 is a fragmental plan view on an enlarged scale and with a portion of theborder frame broken away; and Fig. 4 is a fragmental vertical section on the line 4-4 of Fig. 3.

The bed spring illustrated in the drawing comprises a generally rectangular base frame In including cross members upon which rows of compression springs |2 are supported. A generally rectangular border frame |3 located approximately in the common plane of the upper ends of the springs |2 surrounds the spring-assembly and is secured in any desired manner to the upper end turns of the marginal springs l2. The

particular form of bed spring illustrated and described is shown merely by way of example.

The bed spring shown in the drawing embodies a stabilizer l5 in the form of a strip of flat stock connected at one end to the border frame l3 and extending obliquely downwardly and inwardly of the spring to a point adjacent the base frame Ill-H to which it is connected, preferably through the lowermost turns of interior springs l2, by tension springs I6 and H so arranged as to tend to hold the border frame |3 directly above the base frame.

At the point where the stabilizer I5 is to be connected to the border frame l3, the latter is provided on its inner face with a longitudinally extending slot 20 adapted to receive the end of the stabilizer I5. In the stabilizer I5 I provide a transversely extended slot 2| positioned so that a portion of its width will be received within the slot 20 when the stabilizer I5 is in place. To effect a permanent connection of the stabilizer IS with the border frame l3, the slotted end of the stabilizer is placed in the slot 20 of the border frame, and the metal of the border frame at the edges of the slot Zll is deformed by a suitable die to produce ears 22 which enter the slot 2|, as indicated in Fig. 4.

The slot 20 is most conveniently formed by a saw or milling cutter, and its bottom wall has a radius corresponding to that of such saw or cutter. I prefer to form the end of the stabilizer IE to conform near its center to the curvature of the bottom wall of the slot 25, and I round the corners of the stabilizer l5 as indicated at 23. With such a construction, the stabilizer can be moved longitudinally of the border frame for a limited extent while the slot 2| is still left in position to receive the deformed metal constituting the ears 22. Desirably, the ears 22 bear against the ends of the slot 2| and also against the outer edge thereof. The former bearing prevents movement of the stabilizer l5 longitudinally of the slot 20, while the latter holds the end of the stabilizer l5 firmly against the curved bottom wall of the slot 20. This firm connection of the stabilizer to the border frame is desirable, as it decreases the possibility of noise.

I claim as my invention:

1. In a bed spring, a base frame, spring elements secured to and supported upon said base frame and extending upwardly therefrom, a metal border frame surrounding the upper ends of said spring elements and secured to marginal ones thereof, and a stabilizer acting between said frames, said stabilizer comprising a rigid bar having an elongated opening extending transversely of the bar near one end, said border frame being border frame surrounding the upper ends of said spring elements and secured to marginal gnes thereof, and a stabilizer acting between said 4 having an elongated opening extending transversely of the bar near one end, said border frame being provided with a slot receiving the end of said bar, the metal on at least one side of said slot being displaced into the opening of the bar to prevent withdrawal of the bar from the slot, and spring means, connected between said bar and base;frame. x 1

3. The invention set forth in claim 2 with the 5 addition that the length of said slot exceeds the width of said bar, whereby the bar may be adjusted longitudinally of the slot prior to the v I displacement of metal into said opening. frames, said stabilizer comprising a rigid barfl CHARLES J. ELDER. 

